Method and apparatus for bus encoding and decoding

a bus and bus line technology, applied in the field of bus encoding and decoding, can solve the problems of discontinuous instruction addresses, high system power consumption, and high bus line bit-transition rate, and achieve the effect of reducing the number of bus line bit-transitions

Active Publication Date: 2008-09-25
IND TECH RES INST
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]The present invention is directed to a method and an apparatus for bus encoding,

Problems solved by technology

Therefore, the bus is highly power-consuming in the system, and the power consumed during data transmission is substantially in direct proportion to the number of bus line bit-tr

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for bus encoding and decoding
  • Method and apparatus for bus encoding and decoding
  • Method and apparatus for bus encoding and decoding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025]The encoding apparatus, the decoding apparatus, the encoding method, and the decoding method provided by the present invention focus on data transmitted on the bus. For example, the data transmitted on the instruction address bus are instruction addresses. Moreover, the object of encoding and decoding in the present invention is a piece of data that transmitted through the bus in one time.

[0026]The data on the bus can be classified into consecutive data and discontinuous data. The so-called consecutive data is arithmetic sequence with a constant difference of a predetermined value among each other. Taking an instruction address bus for example, the addresses of sequentially executed instructions are consecutive data, and the address of the branch instruction and its target address are discontinuous data. Due to the locality of the program execution, it is quite probably that the branch instructions are executed repeatedly, thereby causing the discontinuous data to appear repea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method and an apparatus for bus encoding and a method and an apparatus for bus decoding are provided. The methods and apparatuses for bus encoding/decoding use a discontinuous pattern table (DPT) to store discontinuous pattern pairs. The tables are kept synchronous in both transmitter and receiver ends. After transmitting the first data in a discontinuous pattern pair, the second data may be transmitted by merely informing the receiver end through a control line instead of transmitting the second data by the bus.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefit of Taiwan application serial no. 96109298, filed Mar. 19, 2007. All disclosure of the Taiwan application is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to bus encoding and decoding, and more particularly to encoding and decoding of discontinuous bus data.[0004]2. Description of Related Art[0005]In a computer system, various devices transmit data among each other through buses. The data passes through the bus at an extremely high rate, such that the status of bus lines is rapidly converted between 0 and 1. The bus line transition between 0 and 1 results in charging or discharging of bus wires, and the capacitance value of a system bus is hundreds of times of, even thousands of times of, that of an internal logic circuit. Therefore, the bus is highly power-consuming in the system, and the power consumed during data ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F13/42
CPCG06F13/423
Inventor WENG, TSUNG-HSICHIAO, WEI-HAUCHUNG, CHUNG-PINGHSU, CHIH-WEISHIAU, YEU-HORNG
Owner IND TECH RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap